"Invalid processor detected in project or MPLAB.ini file" after installing
MPLAB 5.11 and opening a known good project.

Wayne Hortensius says:

It's a known problem with no cure, just a workaround (checked the discussion
forums at MicroChip's site). Deinstall MPLAB and reinstall it with everything
(programmer support, emulators, the works). The seems to make the problem
go away in 99% of cases. It worked for me on 3 PCs, running WFW3.11, Win95
and Win98.

Microchip says:

V5.11 has a problem with projects if PICSTART Plus and PRO MATE drivers are
not installed. Go to the Microchip web page and just add those elements to
your current installation and everything should work ok. We're getting v5.11.02
posted up there now which does not have this problem.

<A HREF="http://techref.massmind.org/techref/microchip/mplab/511proj.htm"> "Invalid processor detected in project or MPLAB.ini file" after installing MPLAB 5.11 and opening a known good project.</A>

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